Silly little first expirement. But it works nicely...and I maaaay have even gotten the math right. //Heartbeat LED //elCalvoMike 12-6-2008 #define LED 11 //analog pin location for ArduinoMini - change for other boards int i = 0; int pmw = 255; //set PWM max - this can differ for other board p…

LED Heartbeat

system December 7, 2008, 9:22am 2

This would be awesome if you tied it in with a Polar HRM

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